Steam-generating apparatus.



No. 673,707. I Patented May 7, I90l. J. T. oouame & a. H. REYNOLDS.

STEAM GENERATING APPARATUS.

- (Application filed Jan. 11, 1901.

(No Model.)

IT ESSES: I wlvuwons M w f y ATTORNEY n: NCRRIS Firm: :0, PHOTO-HTML. WASHINGTON, u. c.

. UNITED STATES PATENT OFFICE.

JAMES T. DOUGINE, OF NEW YORK, N. Y., AND GEORGE H. REYNOLDS, OF MANSFIELD DEPOT, CONNECTICUT, ASSIGNORS OF ON E-HALF TO J. ENSIGN FULLER AND GARDENHIRE VANDIVERT, OF NEW YORK, N. Y.

STEAM-G EN ERATING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 673,707, dated May 7, 1901.

Application filed January 11, 1901. Serial No. 42,939. (No model.)

To aZZ whom, it may concern.-

Be it known that we, JAMES T. DOUGINE, a resident of New York city, in the county of New York and State of New York,and GEORGE H. REYNOLDS, a resident of Mansfield Depot, in the county of Tolland and State of Connecticut, citizens of the United States, have invented certain new and useful Improvements in Steam -Generating Apparatus, of which the following is a specification.

Our invention relates to means for generating steam for useful purposes by the direct application of a flame of burning fuel to water preferably in the form of fine spray.

The object of the invention is to increase largely the quantity of steam generated per pound of fuel consumed.

Generally, the invention comprises a generator corresponding to a boiler in which the water is converted into steam, a spray-head and a burner inclosed within the generator, means for igniting the fuel from the burner, and an apparatus for feeding the burner and spray-head and for properly operating the igniting device.

The details of the invention are explained by reference to the accompanying drawing.

The generator 1 contains a spray-head 2, having perforations 3, and is held by braces 4, extending to the sides of the generator. A feed-water pipe 5 leads to the spray-head 2 from the water-tank 6 and contains the stopvalve 7 and the check-valve 8 between the stop-valve 7 and the generator 1, preferably near the latter and opening toward the sprayhead to prevent the backing of the steam into the pipe 5. The compressor 9 is connected by an air-pipe 10 to the tank 6, communicating with the interior above the water-line, so that the air-pressure may force the water through the spray-head 2. The water is fed into the tank 6 by means of a pump 11.

The generator represented consists of the barrel 1, having the heads 12 and 12 secured thereto by flanges 13 and bolts 14, and a fireproof lining is inserted, as shown at 36. A safety-valve 15 is provided in the upper head of the generator. The pipe 16 is the exit for the steam-generator. The reservoir 17 contains the liquid fuel, and is connected at its lower part to the burner by the pipe 18, with the stop-valve l9 and the check-valve 20 preferably near the burner. The pipe 10 communicates also with the reservoir 17 above the liquid fuel, so that pressure may be produced for forcing the fuel through the pipe 18 and through the check-valve 20, which latter serves to prevent back pressure from the generator and burner. The tubular extension 21 from the pipe 20 passes through an opening 22 in a nozzle 23, screwed into the lower part of the head 12, and is provided with perforations (shown by small dots) which open into the annular space in the opening around said extension, the end of the extension being closed. This opening 22 communicates at one end with the generator through a perforated hood 24, located within the same, and at the other end with an airbox 25, so that the mixture of the fuel and air may enter the generator for ignition. The air is forced into the air-box 25 through the branch pipe 26, leading from the main airpipe 10. The check-valve 27 prevents back pressure.

The means for igniting the combustible mixture above the perforated hood 24: consists of two electrodes 28 and 29, passing through insulating-plugs 30. The plugs form stuffing-boxes and bearings, whereby the electrodes may be moved back and forth. The electrodes are adapted to meet above the hood 2a to produce a spark, and to be withdrawn from the flame to beneath said hood, by adevice consisting of bell-cranks 32 and 33, connected together by an ins ulating-rod 34:. The

dotted and full lines show difierent phases of the bell-cranks. The current may be conducted through the electrodes by the electric conductors 35, connected to the bell-cranks 32 and 33.

In order to generate steam, the compressor 9 and pump 11 are run, whereby water is forced through the spray-head 2 and fuel and air through the burner and hood 24:,where it is ignited by the electric spark. The electrodesare then separated and drawn below the hood, where there is no flame. The fine spray is instantly converted into steam by contact with the intense heat of the blowpipe-fiame.

Too great a pressure is prevented by the safety-valve 15, and the check-valves 8, 20, and 27 prevent the steam from exit except at the outlet-pipe 16.

The device may be modified without departing from the spirit of our invention. For example, there maybe several burners for one generator, or the burner may he much larger in proportion to the size of the generator than that represented.

We claim as our invention 1. The combination of a steam-generator, a spray-head located therein, means for forcing Water through the spray-head, a burner terminating in the generator, a perforated hood separating the burner from the main portion of the generator, electrodes, and a device located on the outside of the generator for moving the electrodes from one side of the hood into contact with each other on the other side.

2. The combination of a steam-generator, a spray-head located therein, a burner terminating in the generator, a perforated hood over the burner, electrodes extending from the outside to the inside of the generator and passing through the hood, bell-cranks connected respectively to said electrodes, and an insulating-rod connecting the cranks, said electrodes being surrounded by insulating stuffing-boxes.

3. The combination of a steam-generator, a spray-head located therein, a burner terminating in the generator, an air-box and a fuel-pipe connected to the burner, a perforated hoodseparating the burner from the main portion of the generator, electrodes operating through said hood, a Water-tank communicating with the spray-hood, a fuel-reservoir communicating with the fuel-pipe, an air-compressor, pipes connecting the same to the air-chambers of said tank, and said reservoir, and to the said air-box.

4. The combination of a generator consisting of a barrel, heads secured to the barrel, openings through the generator in one or more sets of three, a burner in one opening of each set, a perforated hood separating each burner from the main portion of the generator, electrodes in the remaining two openings of each set and operating through the said hood.

5. The combination of a generator, fireproof lining therein, a safety-valve secured to the generator, a spray-head located in the said generator, a burner terminating in the generator, a fuel-pipe and an air-box connected to the burner, a perforated hood separating the burner from the main portion of the generator, electrodes moving from the under side of the hood into contact with each other on the other side, a water-tank communicating with said spray-head,'a fuel-reservoir communicating with the fuel-pipe, an air-compressor, pipes connecting-the air-com pressor'to the air-chambers of said tank, and said reservoir, and the said air box, and check-valves in the pipes leading to the sprayhead, the air-box, and fuel-pipe.

Signed at New York, in the county of New York and State of New York, this 22d day of October, A. D. 1900.

JAMES T. DOUGINE. GEORGE H. REYNOLDS. Witnesses: D. F. JETMORE, B. BERNNABD. 

